Object Record

Collection

Speer Collection

Catalog Number

1999.0001.1178

Object Name

Mano

'Iipay Aa Name

hapiichaa

Description

A whole hand-held grinding stone, also known as a mano in Southern California archaeology. This bifacial stone is used with one hand for grinding and was shaped in construction. It is rectangular in shape. The stone material is a volcanic with gold biotite mica and inclusions of red and green stone with a porphorytic surface from eroding crystals. It is medium grained.

This grinding or milling stone ventral side is flat and square. This grinding stone dorsal side is rounded and somewhat flat in the middle. Striations appearing on the surface faintly and may suggest that this mano was used in an undulating or back and forth movement. Wear marks on end suggests grinding. Use wear is light. The stone appears to be unpecked on the total surface; the holes in the exterior seem due to the rock material rather than deliberate pecking (that increases the grinding surface for greater traction).